Castle Design artisans hand-craft classically inspired architectural ceiling rings featuring historical, ornamental and traditional patterns in a gypsum based plaster reinforced with natural hemp fibers for durability. We are proud to say that our classic ceiling domes and rings are used across the USA in residential and commercial applications, and an exterior formulation is available for many of our rings which feature among other elements acanthus leaves, scrolls, volutes, flutes, egg and dart moulding details, greek key, shell, and coffered patterns. Rings may be sized to accommodate up lighting and some are available in a flexible formulation.